FRP is stronger than structural steel on a pound-for pound basis&period; It has been used to buildings&comma; walkway&comma; sub-floors and platforms&period;

B&period; Light weight

FRP is 20-25&percnt; the weight of steel and 70&percnt; the weight of aluminum&period; FRP are easily transported&comma; handled and lifted into place&period; Total structures can often be preassembled and shipped to the job site ready to installation&period;

C&period; Electro-magnetic transparency

FRP are transparent to radio waves&comma; microwaves and other electromagnetic&period; It is widely used to make antennas&period;

D&period; Dimensional stability

1&period;The coefficient of thermal expansion of FRP is slightly less than steel and significantly less than aluminum&period;2&period; FRP pultruded square tubes are manufactured with the pultrusion process after choosing the correct raw materials major including the resin&comma; fibers and additives according to the profiles requirement including mechanical strength&comma; electrical insulation&comma; anti-corrosion etc&period;3&period; FRP pultruded square tubes can meet the customer's requirements by using different combination of resin&comma; fibers and others&period;4&period; FRP pultruded square tubes are widely used for chemical processing&comma; oil and gas&comma; electrical and utility&comma; wastewater treatment&comma; transportation&comma; construction etc&period;

Relevant specification and weight of fiberglass Bars as follows&colon;